Home / 21,386.25-29,513.66-11,954.84

Finding the Fourth Proportional to 21,386.25, 29,513.66 and 11,954.84

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Solution

The fourth proportional to 21,386.25, 29,513.66 and 11,954.84 is: 16,498.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.25 : 29,513.66 = 11,954.84 : x
  2. Step 2: Convert to fraction form
    21,386.25/29,513.66 = 11,954.84/x
  3. Step 3: Cross multiply
    21,386.25x = 29,513.66 × 11,954.84
  4. Step 4: Simplify right side
    21,386.25x = 352,830,875.77
  5. Step 5: Solve for x
    x = 352,830,875.77/21,386.25
  6. Step 6: Final answer
    x = 16,498.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.